UE assistance to configure self-interference measurement

ABSTRACT

A configuration for a first wireless device to provide, to a second wireless device, assistance information for a SIM configuration. The apparatus transmits, to a second wireless device, assistance information for a SIM configuration for the first wireless device and including resource information of the first wireless device for a SIM procedure. The apparatus receives, from the second wireless device, the SIM configuration.

CROSS REFERENCE TO RELATED APPLICATION(S)

This application claims the benefit of U.S. Provisional Application Ser.No. 63/033,748, entitled “UE Assistance to Configure Self-InterferenceMeasurement” and filed on Jun. 2, 2020, which is expressly incorporatedby reference herein in its entirety.

TECHNICAL FIELD

The present disclosure relates generally to communication systems, andmore particularly, to a configuration for a self-interferencemeasurement procedure in wireless communication systems.

INTRODUCTION

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources. Examples of suchmultiple-access technologies include code division multiple access(CDMA) systems, time division multiple access (TDMA) systems, frequencydivision multiple access (FDMA) systems, orthogonal frequency divisionmultiple access (OFDMA) systems, single-carrier frequency divisionmultiple access (SC-FDMA) systems, and time division synchronous codedivision multiple access (TD-SCDMA) systems.

These multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent wireless devices to communicate on a municipal, national,regional, and even global level. An example telecommunication standardis 5G New Radio (NR). 5G NR is part of a continuous mobile broadbandevolution promulgated by Third Generation Partnership Project (3GPP) tomeet new requirements associated with latency, reliability, security,scalability (e.g., with Internet of Things (IoT)), and otherrequirements. 5G NR includes services associated with enhanced mobilebroadband (eMBB), massive machine type communications (mMTC), andultra-reliable low latency communications (URLLC). Some aspects of 5G NRmay be based on the 4G Long Term Evolution (LTE) standard. There existsa need for further improvements in 5G NR technology. These improvementsmay also be applicable to other multi-access technologies and thetelecommunication standards that employ these technologies.

BRIEF SUMMARY

The following presents a simplified summary of one or more aspects inorder to provide a basic understanding of such aspects. This summary isnot an extensive overview of all contemplated aspects, and is intendedto neither identify key or critical elements of all aspects nordelineate the scope of any or all aspects. Its sole purpose is topresent some concepts of one or more aspects in a simplified form as aprelude to the more detailed description that is presented later.

In an aspect of the disclosure, a method, a computer-readable medium,and an apparatus are provided. The apparatus may be a device at a firstwireless device. The device may be a processor and/or a modem at a firstwireless device or the first wireless device itself. The apparatustransmits, to a second wireless device, assistance information for aself-interference measurement (SIM) configuration for the first wirelessdevice and including resource information for a SIM procedure associatedwith the first wireless device. The apparatus receives, from the secondwireless device, the SIM configuration.

In an aspect of the disclosure, a method, a computer-readable medium,and an apparatus are provided. The apparatus may be a device at a firstwireless device. The device may be a processor and/or a modem at a firstwireless device or the first wireless device itself. The apparatusreceives, from a second wireless device, assistance information for aself-interference measurement (SIM) configuration for the secondwireless device. The apparatus configures the second wireless devicewith the SIM configuration based on the assistance information receivedfrom the second wireless device, wherein the assistance informationcomprises resource information for a SIM procedure associated with thesecond wireless device.

To the accomplishment of the foregoing and related ends, the one or moreaspects comprise the features hereinafter fully described andparticularly pointed out in the claims. The following description andthe annexed drawings set forth in detail certain illustrative featuresof the one or more aspects. These features are indicative, however, ofbut a few of the various ways in which the principles of various aspectsmay be employed, and this description is intended to include all suchaspects and their equivalents.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram illustrating an example of a wireless communicationssystem and an access network.

FIG. 2A is a diagram illustrating an example of a first frame, inaccordance with various aspects of the present disclosure.

FIG. 2B is a diagram illustrating an example of DL channels within asubframe, in accordance with various aspects of the present disclosure.

FIG. 2C is a diagram illustrating an example of a second frame, inaccordance with various aspects of the present disclosure.

FIG. 2D is a diagram illustrating an example of UL channels within asubframe, in accordance with various aspects of the present disclosure.

FIG. 3 is a diagram illustrating an example of a base station and userequipment (UE) in an access network.

FIG. 4 is a diagram illustrating an example IAB network.

FIG. 5 is a diagram illustrating an example IAB network and componentsthereof.

FIGS. 6A-6C are diagrams illustrating examples of full duplexcommunication.

FIG. 7 is a call flow diagram of signaling between a first wirelessdevice and a second wireless device in accordance with certain aspectsof the disclosure.

FIG. 8 is a flowchart of a method of wireless communication.

FIG. 9 is a flowchart of a method of wireless communication.

FIG. 10 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 11 is a flowchart of a method of wireless communication.

FIG. 12 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

DETAILED DESCRIPTION

The detailed description set forth below in connection with the appendeddrawings is intended as a description of various configurations and isnot intended to represent the only configurations in which the conceptsdescribed herein may be practiced. The detailed description includesspecific details for the purpose of providing a thorough understandingof various concepts. However, it will be apparent to those skilled inthe art that these concepts may be practiced without these specificdetails. In some instances, well known structures and components areshown in block diagram form in order to avoid obscuring such concepts.

Several aspects of telecommunication systems will now be presented withreference to various apparatus and methods. These apparatus and methodswill be described in the following detailed description and illustratedin the accompanying drawings by various blocks, components, circuits,processes, algorithms, etc. (collectively referred to as “elements”).These elements may be implemented using electronic hardware, computersoftware, or any combination thereof. Whether such elements areimplemented as hardware or software depends upon the particularapplication and design constraints imposed on the overall system.

By way of example, an element, or any portion of an element, or anycombination of elements may be implemented as a “processing system” thatincludes one or more processors. Examples of processors includemicroprocessors, microcontrollers, graphics processing units (GPUs),central processing units (CPUs), application processors, digital signalprocessors (DSPs), reduced instruction set computing (RISC) processors,systems on a chip (SoC), baseband processors, field programmable gatearrays (FPGAs), programmable logic devices (PLDs), state machines, gatedlogic, discrete hardware circuits, and other suitable hardwareconfigured to perform the various functionality described throughoutthis disclosure. One or more processors in the processing system mayexecute software. Software shall be construed broadly to meaninstructions, instruction sets, code, code segments, program code,programs, subprograms, software components, applications, softwareapplications, software packages, routines, subroutines, objects,executables, threads of execution, procedures, functions, etc., whetherreferred to as software, firmware, middleware, microcode, hardwaredescription language, or otherwise.

Accordingly, in one or more example embodiments, the functions describedmay be implemented in hardware, software, or any combination thereof. Ifimplemented in software, the functions may be stored on or encoded asone or more instructions or code on a computer-readable medium.Computer-readable media includes computer storage media. Storage mediamay be any available media that can be accessed by a computer. By way ofexample, and not limitation, such computer-readable media can comprise arandom-access memory (RAM), a read-only memory (ROM), an electricallyerasable programmable ROM (EEPROM), optical disk storage, magnetic diskstorage, other magnetic storage devices, combinations of the types ofcomputer-readable media, or any other medium that can be used to storecomputer executable code in the form of instructions or data structuresthat can be accessed by a computer.

While aspects and implementations are described in this application byillustration to some examples, those skilled in the art will understandthat additional implementations and use cases may come about in manydifferent arrangements and scenarios. Innovations described herein maybe implemented across many differing platform types, devices, systems,shapes, sizes, and packaging arrangements. For example, implementationsand/or uses may come about via integrated chip implementations and othernon-module-component based devices (e.g., end-user devices, vehicles,communication devices, computing devices, industrial equipment,retail/purchasing devices, medical devices, artificial intelligence(AI)-enabled devices, etc.). While some examples may or may not bespecifically directed to use cases or applications, a wide assortment ofapplicability of described innovations may occur. Implementations mayrange a spectrum from chip-level or modular components to non-modular,non-chip-level implementations and further to aggregate, distributed, ororiginal equipment manufacturer (OEM) devices or systems incorporatingone or more aspects of the described innovations. In some practicalsettings, devices incorporating described aspects and features may alsoinclude additional components and features for implementation andpractice of claimed and described aspect. For example, transmission andreception of wireless signals necessarily includes a number ofcomponents for analog and digital purposes (e.g., hardware componentsincluding antenna, RF-chains, power amplifiers, modulators, buffer,processor(s), interleaver, adders/summers, etc.). It is intended thatinnovations described herein may be practiced in a wide variety ofdevices, chip-level components, systems, distributed arrangements,end-user devices, etc. of varying sizes, shapes, and constitution.

FIG. 1 is a diagram illustrating an example of a wireless communicationssystem and an access network 100. The wireless communication system andaccess network 100 may include one or more UEs 104 in communication witha base station 102 or 180. The system may include UEs 104 incommunication with other UEs 104. The wireless communication system andaccess network 100 may include an integrated access and backhaul (IAB)network that includes multiple cells in communication with each other toprovide an access network and a backhaul network to a core network suchas core network 190 or Evolved Packet Core (EPC) 160. The core network190 may be a 5G Core (5GC) a core network that supports new radio (NR)communication or another type of core network. The IAB network mayinclude one or more IAB nodes 103. The IAB nodes may exchangecommunication with other IAB nodes 103, with a base station 102 or 180,and/or with UEs 104.

Referring again to FIG. 1 , in certain aspects, a wireless device suchas the UE 104 or an IAB node 103 may be configured to provide assistanceinformation in order to improve a configuration for SIM and reduce theresources overhead for SIM. The IAB node 103 may be an IAB node, a childnode or a parent node. For example, the UE 104 or IAB node 103 mayinclude an information component 198 configured to transmit assistanceinformation for a SIM configuration. The UE 104 or IAB node may transmitthe assistance information for a self-interference measurement (SIM)configuration. For example, the UE 104 may transmit the assistanceinformation comprising resource information for a SIM procedureassociated with the UE 104. The UE 104 or IAB node may transmit, to asecond wireless device, assistance information for the SIM configurationfor the UE 104 or IAB node. The UE 104 or IAB node may receive, from thesecond wireless device, the SIM configuration.

Referring again to FIG. 1 , in certain aspects, a base station 102 or180 or an IAB Node 103 may be configured to configure a SIMconfiguration in view of the assistance information received from awireless device. For example, base station 102 or 180 or IAB Node 103may include a configuration component 199 configured to configure asecond wireless device with a SIM configuration. The base station 102 or180 or the IAB Node 103 may receive, from a second wireless device,assistance information for a SIM configuration for the second wirelessdevice. The base station 102 or 180 or the IAB Node 103 may configurethe second wireless device with the SIM configuration.

Although examples in the following description may be focused on 5G NR,the concepts described herein may be applicable to other similar areas,such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

The wireless communications system (also referred to as a wireless widearea network (WWAN)) includes base stations 102, UEs 104, an EvolvedPacket Core (EPC) 160, and another core network 190 (e.g., a 5G Core(5GC)). The base stations 102 may include macrocells (high powercellular base station) and/or small cells (low power cellular basestation). The macrocells include base stations. The small cells includefemtocells, picocells, and microcells.

The base stations 102 configured for 4G LTE (collectively referred to asEvolved Universal Mobile Telecommunications System (UMTS) TerrestrialRadio Access Network (E-UTRAN)) may interface with the EPC 160 throughfirst backhaul links 132 (e.g., S1 interface). The base stations 102configured for 5G NR (collectively referred to as Next Generation RAN(NG-RAN)) may interface with core network 190 through second backhaullinks 184. In addition to other functions, the base stations 102 mayperform one or more of the following functions: transfer of user data,radio channel ciphering and deciphering, integrity protection, headercompression, mobility control functions (e.g., handover, dualconnectivity), inter-cell interference coordination, connection setupand release, load balancing, distribution for non-access stratum (NAS)messages, NAS node selection, synchronization, radio access network(RAN) sharing, multimedia broadcast multicast service (MBMS), subscriberand equipment trace, RAN information management (RIM), paging,positioning, and delivery of warning messages. The base stations 102 maycommunicate directly or indirectly (e.g., through the EPC 160 or corenetwork 190) with each other over third backhaul links 134 (e.g., X2interface). The first backhaul links 132, the second backhaul links 184,and the third backhaul links 134 may be wired or wireless.

The base stations 102 may wirelessly communicate with the UEs 104. Eachof the base stations 102 may provide communication coverage for arespective geographic coverage area 110. There may be overlappinggeographic coverage areas 110. For example, the small cell 102′ may havea coverage area 110′ that overlaps the coverage area 110 of one or moremacro base stations 102. A network that includes both small cell andmacrocells may be known as a heterogeneous network. A heterogeneousnetwork may also include Home Evolved Node Bs (eNBs) (HeNBs), which mayprovide service to a restricted group known as a closed subscriber group(CSG). The communication links 120 between the base stations 102 and theUEs 104 may include uplink (UL) (also referred to as reverse link)transmissions from a UE 104 to a base station 102 and/or downlink (DL)(also referred to as forward link) transmissions from a base station 102to a UE 104. The communication links 120 may use multiple-input andmultiple-output (MIMO) antenna technology, including spatialmultiplexing, beamforming, and/or transmit diversity. The communicationlinks may be through one or more carriers. The base stations 102/UEs 104may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz)bandwidth per carrier allocated in a carrier aggregation of up to atotal of Yx MHz (x component carriers) used for transmission in eachdirection. The carriers may or may not be adjacent to each other.Allocation of carriers may be asymmetric with respect to DL and UL(e.g., more or fewer carriers may be allocated for DL than for UL). Thecomponent carriers may include a primary component carrier and one ormore secondary component carriers. A primary component carrier may bereferred to as a primary cell (PCell) and a secondary component carriermay be referred to as a secondary cell (SCell).

Certain UEs 104 may communicate with each other using device-to-device(D2D) communication link 158. The D2D communication link 158 may use theDL/UL WWAN spectrum. The D2D communication link 158 may use one or moresidelink channels, such as a physical sidelink broadcast channel(PSBCH), a physical sidelink discovery channel (PSDCH), a physicalsidelink shared channel (PSSCH), and a physical sidelink control channel(PSCCH). D2D communication may be through a variety of wireless D2Dcommunications systems, such as for example, WiMedia, Bluetooth, ZigBee,Wi-Fi based on the Institute of Electrical and Electronics Engineers(IEEE) 802.11 standard, LTE, or NR.

The wireless communications system may further include a Wi-Fi accesspoint (AP) 150 in communication with Wi-Fi stations (STAs) 152 viacommunication links 154, e.g., in a 5 GHz unlicensed frequency spectrumor the like. When communicating in an unlicensed frequency spectrum, theSTAs 152/AP 150 may perform a clear channel assessment (CCA) prior tocommunicating in order to determine whether the channel is available.

The small cell 102′ may operate in a licensed and/or an unlicensedfrequency spectrum. When operating in an unlicensed frequency spectrum,the small cell 102′ may employ NR and use the same unlicensed frequencyspectrum (e.g., 5 GHz, or the like) as used by the Wi-Fi AP 150. Thesmall cell 102′, employing NR in an unlicensed frequency spectrum, mayboost coverage to and/or increase capacity of the access network.

The electromagnetic spectrum is often subdivided, based onfrequency/wavelength, into various classes, bands, channels, etc. In 5GNR, two initial operating bands have been identified as frequency rangedesignations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz).Although a portion of FR1 is greater than 6 GHz, FR1 is often referredto (interchangeably) as a “sub-6 GHz” band in various documents andarticles. A similar nomenclature issue sometimes occurs with regard toFR2, which is often referred to (interchangeably) as a “millimeter wave”band in documents and articles, despite being different from theextremely high frequency (EHF) band (30 GHz-300 GHz) which is identifiedby the International Telecommunications Union (ITU) as a “millimeterwave” band.

The frequencies between FR1 and FR2 are often referred to as mid-bandfrequencies. Recent 5G NR studies have identified an operating band forthese mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25 GHz). Frequency bands falling within FR3 may inherit FR1characteristics and/or FR2 characteristics, and thus may effectivelyextend features of FR1 and/or FR2 into mid-band frequencies. Inaddition, higher frequency bands are currently being explored to extend5G NR operation beyond 52.6 GHz. For example, three higher operatingbands have been identified as frequency range designations FR4a or FR4-1(52.6 GHz-71 GHz), FR4 (52.6 GHz-114.25 GHz), and FR5 (114.25 GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

With the above aspects in mind, unless specifically stated otherwise, itshould be understood that the term “sub-6 GHz” or the like if usedherein may broadly represent frequencies that may be less than 6 GHz,may be within FR1, or may include mid-band frequencies. Further, unlessspecifically stated otherwise, it should be understood that the term“millimeter wave” or the like if used herein may broadly representfrequencies that may include mid-band frequencies, may be within FR2,FR4, FR4-a or FR4-1, and/or FR5, or may be within the EHF band.

A base station 102, whether a small cell 102′ or a large cell (e.g.,macro base station), may include and/or be referred to as an eNB, gNodeB(gNB), or another type of base station. Some base stations, such as gNB180 may operate in a traditional sub 6 GHz spectrum, in millimeter wavefrequencies, and/or near millimeter wave frequencies in communicationwith the UE 104. When the gNB 180 operates in millimeter wave or nearmillimeter wave frequencies, the gNB 180 may be referred to as amillimeter wave base station. The millimeter wave base station 180 mayutilize beamforming 182 with the UE 104 to compensate for the path lossand short range. The base station 180 and the UE 104 may each include aplurality of antennas, such as antenna elements, antenna panels, and/orantenna arrays to facilitate the beamforming.

The base station 180 may transmit a beamformed signal to the UE 104 inone or more transmit directions 182′. The UE 104 may receive thebeamformed signal from the base station 180 in one or more receivedirections 182″. The UE 104 may also transmit a beamformed signal to thebase station 180 in one or more transmit directions. The base station180 may receive the beamformed signal from the UE 104 in one or morereceive directions. The base station 180/UE 104 may perform beamtraining to determine the best receive and transmit directions for eachof the base station 180/UE 104. The transmit and receive directions forthe base station 180 may or may not be the same. The transmit andreceive directions for the UE 104 may or may not be the same.

The EPC 160 may include a Mobility Management Entity (MME) 162, otherMMEs 164, a Serving Gateway 166, a Multimedia Broadcast MulticastService (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC)170, and a Packet Data Network (PDN) Gateway 172. The MME 162 may be incommunication with a Home Subscriber Server (HSS) 174. The MME 162 isthe control node that processes the signaling between the UEs 104 andthe EPC 160. Generally, the MME 162 provides bearer and connectionmanagement. All user Internet protocol (IP) packets are transferredthrough the Serving Gateway 166, which itself is connected to the PDNGateway 172. The PDN Gateway 172 provides UE IP address allocation aswell as other functions. The PDN Gateway 172 and the BM-SC 170 areconnected to the IP Services 176. The IP Services 176 may include theInternet, an intranet, an IP Multimedia Subsystem (IMS), a PS StreamingService, and/or other IP services. The BM-SC 170 may provide functionsfor MBMS user service provisioning and delivery. The BM-SC 170 may serveas an entry point for content provider MBMS transmission, may be used toauthorize and initiate MBMS Bearer Services within a public land mobilenetwork (PLMN), and may be used to schedule MBMS transmissions. The MBMSGateway 168 may be used to distribute MBMS traffic to the base stations102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN)area broadcasting a particular service, and may be responsible forsession management (start/stop) and for collecting eMBMS relatedcharging information.

The core network 190 may include an Access and Mobility ManagementFunction (AMF) 192, other AMFs 193, a Session Management Function (SMF)194, and a User Plane Function (UPF) 195. The AMF 192 may be incommunication with a Unified Data Management (UDM) 196. The AMF 192 isthe control node that processes the signaling between the UEs 104 andthe core network 190. Generally, the AMF 192 provides QoS flow andsession management. All user Internet protocol (IP) packets aretransferred through the UPF 195. The UPF 195 provides UE IP addressallocation as well as other functions. The UPF 195 is connected to theIP Services 197. The IP Services 197 may include the Internet, anintranet, an IP Multimedia Subsystem (IMS), a Packet Switch (PS)Streaming (PSS) Service, and/or other IP services.

The base station may include and/or be referred to as a gNB, Node B,eNB, an access point, a base transceiver station, a radio base station,a radio transceiver, a transceiver function, a basic service set (BSS),an extended service set (ESS), a transmit reception point (TRP), or someother suitable terminology. The base station 102 provides an accesspoint to the EPC 160 or core network 190 for a UE 104. Examples of UEs104 include a cellular phone, a smart phone, a session initiationprotocol (SIP) phone, a laptop, a personal digital assistant (PDA), asatellite radio, a global positioning system, a multimedia device, avideo device, a digital audio player (e.g., MP3 player), a camera, agame console, a tablet, a smart device, a wearable device, a vehicle, anelectric meter, a gas pump, a large or small kitchen appliance, ahealthcare device, an implant, a sensor/actuator, a display, or anyother similar functioning device. Some of the UEs 104 may be referred toas IoT devices (e.g., parking meter, gas pump, toaster, vehicles, heartmonitor, etc.). The UE 104 may also be referred to as a station, amobile station, a subscriber station, a mobile unit, a subscriber unit,a wireless unit, a remote unit, a mobile device, a wireless device, awireless communications device, a remote device, a mobile subscriberstation, an access terminal, a mobile terminal, a wireless terminal, aremote terminal, a handset, a user agent, a mobile client, a client, orsome other suitable terminology.

FIG. 2A is a diagram 200 illustrating an example of a first subframewithin a 5G NR frame structure. FIG. 2B is a diagram 230 illustrating anexample of DL channels within a 5G NR subframe. FIG. 2C is a diagram 250illustrating an example of a second subframe within a 5G NR framestructure. FIG. 2D is a diagram 280 illustrating an example of ULchannels within a 5G NR subframe. The 5G NR frame structure may befrequency division duplexed (FDD) in which for a particular set ofsubcarriers (carrier system bandwidth), subframes within the set ofsubcarriers are dedicated for either DL or UL, or may be time divisionduplexed (TDD) in which for a particular set of subcarriers (carriersystem bandwidth), subframes within the set of subcarriers are dedicatedfor both DL and UL. In the examples provided by FIGS. 2A, 2C, the 5G NRframe structure is assumed to be TDD, with subframe 4 being configuredwith slot format 28 (with mostly DL), where D is DL, U is UL, and F isflexible for use between DL/UL, and subframe 3 being configured withslot format 1 (with all UL). While subframes 3, 4 are shown with slotformats 1, 28, respectively, any particular subframe may be configuredwith any of the various available slot formats 0-61. Slot formats 0, 1are all DL, UL, respectively. Other slot formats 2-61 include a mix ofDL, UL, and flexible symbols. UEs are configured with the slot format(dynamically through DL control information (DCI), orsemi-statically/statically through radio resource control (RRC)signaling) through a received slot format indicator (SFI). Note that thedescription infra applies also to a 5G NR frame structure that is TDD.

FIGS. 2A-2D illustrate a frame structure, and the aspects of the presentdisclosure may be applicable to other wireless communicationtechnologies, which may have a different frame structure and/ordifferent channels. A frame (10 ms) may be divided into 10 equally sizedsubframes (1 ms). Each subframe may include one or more time slots.Subframes may also include mini-slots, which may include 7, 4, or 2symbols. Each slot may include 7 or 14 symbols, depending on whether thecyclic prefix (CP) is normal or extended. For normal CP, each slot mayinclude 14 symbols, and for extended CP, each slot may include 7symbols. The symbols on DL may be CP orthogonal frequency divisionmultiplexing (OFDM) (CP-OFDM) symbols. The symbols on UL may be CP-OFDMsymbols (for high throughput scenarios) or discrete Fourier transform(DFT) spread OFDM (DFT-s-OFDM) symbols (also referred to as singlecarrier frequency-division multiple access (SC-FDMA) symbols) (for powerlimited scenarios; limited to a single stream transmission). The numberof slots within a subframe is based on the CP and the numerology. Thenumerology defines the subcarrier spacing (SCS) and, effectively, thesymbol length/duration, which is equal to 1/SCS.

SCS μ Δf = 2^(μ) · 15 [kHz] Cyclic prefix 0  15 Normal 1  30 Normal 2 60 Normal, Extended 3 120 Normal 4 240 Normal

For normal CP (14 symbols/slot), different numerologies μ 0 to 4 allowfor 1, 2, 4, 8, and 16 slots, respectively, per subframe. For extendedCP, the numerology 2 allows for 4 slots per subframe. Accordingly, fornormal CP and numerology μ, there are 14 symbols/slot and 2^(μ)slots/subframe. The subcarrier spacing may be equal to 2^(μ)*15 kHz,where μ is the numerology 0 to 4. As such, the numerology μ=0 has asubcarrier spacing of 15 kHz and the numerology μ=4 has a subcarrierspacing of 240 kHz. The symbol length/duration is inversely related tothe subcarrier spacing. FIGS. 2A-2D provide an example of normal CP with14 symbols per slot and numerology μ=2 with 4 slots per subframe. Theslot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and thesymbol duration is approximately 16.67 μs. Within a set of frames, theremay be one or more different bandwidth parts (BWPs) (see FIG. 2B) thatare frequency division multiplexed. Each BWP may have a particularnumerology and CP (normal or extended).

A resource grid may be used to represent the frame structure. Each timeslot includes a resource block (RB) (also referred to as physical RBs(PRBs)) that extends 12 consecutive subcarriers. The resource grid isdivided into multiple resource elements (REs). The number of bitscarried by each RE depends on the modulation scheme.

As illustrated in FIG. 2A, some of the REs carry reference (pilot)signals (RS) for the UE. The RS may include demodulation RS (DM-RS)(indicated as R for one particular configuration, but other DM-RSconfigurations are possible) and channel state information referencesignals (CSI-RS) for channel estimation at the UE. The RS may alsoinclude beam measurement RS (BRS), beam refinement RS (BRRS), and phasetracking RS (PT-RS).

FIG. 2B illustrates an example of various DL channels within a subframeof a frame. The physical downlink control channel (PDCCH) carries DCIwithin one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or16 CCEs), each CCE including six RE groups (REGs), each REG including 12consecutive REs in an OFDM symbol of an RB. A PDCCH within one BWP maybe referred to as a control resource set (CORESET). A UE is configuredto monitor PDCCH candidates in a PDCCH search space (e.g., common searchspace, UE-specific search space) during PDCCH monitoring occasions onthe CORESET, where the PDCCH candidates have different DCI formats anddifferent aggregation levels. Additional BWPs may be located at greaterand/or lower frequencies across the channel bandwidth. A primarysynchronization signal (PSS) may be within symbol 2 of particularsubframes of a frame. The PSS is used by a UE 104 to determinesubframe/symbol timing and a physical layer identity. A secondarysynchronization signal (SSS) may be within symbol 4 of particularsubframes of a frame. The SSS is used by a UE to determine a physicallayer cell identity group number and radio frame timing. Based on thephysical layer identity and the physical layer cell identity groupnumber, the UE can determine a physical cell identifier (PCI). Based onthe PCI, the UE can determine the locations of the DM-RS. The physicalbroadcast channel (PBCH), which carries a master information block(MIB), may be logically grouped with the PSS and SSS to form asynchronization signal (SS)/PBCH block (also referred to as SS block(SSB)). The MIB provides a number of RBs in the system bandwidth and asystem frame number (SFN). The physical downlink shared channel (PDSCH)carries user data, broadcast system information not transmitted throughthe PBCH such as system information blocks (SIBs), and paging messages.

As illustrated in FIG. 2C, some of the REs carry DM-RS (indicated as Rfor one particular configuration, but other DM-RS configurations arepossible) for channel estimation at the base station. The UE maytransmit DM-RS for the physical uplink control channel (PUCCH) and DM-RSfor the physical uplink shared channel (PUSCH). The PUSCH DM-RS may betransmitted in the first one or two symbols of the PUSCH. The PUCCHDM-RS may be transmitted in different configurations depending onwhether short or long PUCCHs are transmitted and depending on theparticular PUCCH format used. The UE may transmit sounding referencesignals (SRS). The SRS may be transmitted in the last symbol of asubframe. The SRS may have a comb structure, and a UE may transmit SRSon one of the combs. The SRS may be used by a base station for channelquality estimation to enable frequency-dependent scheduling on the UL.

FIG. 2D illustrates an example of various UL channels within a subframeof a frame. The PUCCH may be located as indicated in one configuration.The PUCCH carries uplink control information (UCI), such as schedulingrequests, a channel quality indicator (CQI), a precoding matrixindicator (PMI), a rank indicator (RI), and hybrid automatic repeatrequest (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback (i.e., one ormore HARQ ACK bits indicating one or more ACK and/or negative ACK(NACK)). The PUSCH carries data, and may additionally be used to carry abuffer status report (BSR), a power headroom report (PHR), and/or UCI.

FIG. 3 is a block diagram of a wireless device 310 in communication witha wireless device 350 in an access network. In some examples, thewireless device 310 may be a base station in communication with a UE(e.g., the device 350). In other examples, the wireless device 310 or350 may be an IAB node. For example, the device 310 may be an IAB nodeand the device 350 may be a child node or a UE. In other examples, thewireless device 310 may be a base station, and the wireless device 350may be an IAB node. In the DL, IP packets from the EPC 160 may beprovided to a controller/processor 375. The controller/processor 375implements layer 3 and layer 2 functionality. Layer 3 includes a radioresource control (RRC) layer, and layer 2 includes a service dataadaptation protocol (SDAP) layer, a packet data convergence protocol(PDCP) layer, a radio link control (RLC) layer, and a medium accesscontrol (MAC) layer. The controller/processor 375 provides RRC layerfunctionality associated with broadcasting of system information (e.g.,MIB, SIBs), RRC connection control (e.g., RRC connection paging, RRCconnection establishment, RRC connection modification, and RRCconnection release), inter radio access technology (RAT) mobility, andmeasurement configuration for UE measurement reporting; PDCP layerfunctionality associated with header compression/decompression, security(ciphering, deciphering, integrity protection, integrity verification),and handover support functions; RLC layer functionality associated withthe transfer of upper layer packet data units (PDUs), error correctionthrough ARQ, concatenation, segmentation, and reassembly of RLC servicedata units (SDUs), re-segmentation of RLC data PDUs, and reordering ofRLC data PDUs; and MAC layer functionality associated with mappingbetween logical channels and transport channels, multiplexing of MACSDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs,scheduling information reporting, error correction through HARQ,priority handling, and logical channel prioritization.

The transmit (TX) processor 316 and the receive (RX) processor 370implement layer 1 functionality associated with various signalprocessing functions. Layer 1, which includes a physical (PHY) layer,may include error detection on the transport channels, forward errorcorrection (FEC) coding/decoding of the transport channels,interleaving, rate matching, mapping onto physical channels,modulation/demodulation of physical channels, and MIMO antennaprocessing. The TX processor 316 handles mapping to signalconstellations based on various modulation schemes (e.g., binaryphase-shift keying (BPSK), quadrature phase-shift keying (QPSK),M-phase-shift keying (M-PSK), M-quadrature amplitude modulation(M-QAM)). The coded and modulated symbols may then be split intoparallel streams. Each stream may then be mapped to an OFDM subcarrier,multiplexed with a reference signal (e.g., pilot) in the time and/orfrequency domain, and then combined together using an Inverse FastFourier Transform (IFFT) to produce a physical channel carrying a timedomain OFDM symbol stream. The OFDM stream is spatially precoded toproduce multiple spatial streams. Channel estimates from a channelestimator 374 may be used to determine the coding and modulation scheme,as well as for spatial processing. The channel estimate may be derivedfrom a reference signal and/or channel condition feedback transmitted bythe device 350. Each spatial stream may then be provided to a differentantenna 320 via a separate transmitter 318 TX. Each transmitter 318 TXmay modulate a radio frequency (RF) carrier with a respective spatialstream for transmission.

At the device 350, each receiver 354 RX receives a signal through itsrespective antenna 352. Each receiver 354 RX recovers informationmodulated onto an RF carrier and provides the information to the receive(RX) processor 356. The TX processor 368 and the RX processor 356implement layer 1 functionality associated with various signalprocessing functions. The RX processor 356 may perform spatialprocessing on the information to recover any spatial streams destinedfor the device 350. If multiple spatial streams are destined for thedevice 350, they may be combined by the RX processor 356 into a singleOFDM symbol stream. The RX processor 356 then converts the OFDM symbolstream from the time-domain to the frequency domain using a Fast FourierTransform (FFT). The frequency domain signal comprises a separate OFDMsymbol stream for each subcarrier of the OFDM signal. The symbols oneach subcarrier, and the reference signal, are recovered and demodulatedby determining the most likely signal constellation points transmittedby the device 310. These soft decisions may be based on channelestimates computed by the channel estimator 358. The soft decisions arethen decoded and deinterleaved to recover the data and control signalsthat were originally transmitted by the device 310 on the physicalchannel. The data and control signals are then provided to thecontroller/processor 359, which implements layer 3 and layer 2functionality.

The controller/processor 359 can be associated with a memory 360 thatstores program codes and data. The memory 360 may be referred to as acomputer-readable medium. In the UL, the controller/processor 359provides demultiplexing between transport and logical channels, packetreassembly, deciphering, header decompression, and control signalprocessing to recover IP packets from the EPC 160. Thecontroller/processor 359 is also responsible for error detection usingan ACK and/or NACK protocol to support HARQ operations.

Similar to the functionality described in connection with the DLtransmission by the device 310, the controller/processor 359 providesRRC layer functionality associated with system information (e.g., MIB,SIBs) acquisition, RRC connections, and measurement reporting; PDCPlayer functionality associated with header compression/decompression,and security (ciphering, deciphering, integrity protection, integrityverification); RLC layer functionality associated with the transfer ofupper layer PDUs, error correction through ARQ, concatenation,segmentation, and reassembly of RLC SDUs, re-segmentation of RLC dataPDUs, and reordering of RLC data PDUs; and MAC layer functionalityassociated with mapping between logical channels and transport channels,multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs,scheduling information reporting, error correction through HARQ,priority handling, and logical channel prioritization.

Channel estimates derived by a channel estimator 358 from a referencesignal or feedback transmitted by the device 310 may be used by the TXprocessor 368 to select the appropriate coding and modulation schemes,and to facilitate spatial processing. The spatial streams generated bythe TX processor 368 may be provided to different antenna 352 viaseparate transmitters 354TX. Each transmitter 354TX may modulate an RFcarrier with a respective spatial stream for transmission.

The UL transmission is processed at the device 310 in a manner similarto that described in connection with the receiver function at the device350. Each receiver 318RX receives a signal through its respectiveantenna 320. Each receiver 318RX recovers information modulated onto anRF carrier and provides the information to a RX processor 370.

The controller/processor 375 can be associated with a memory 376 thatstores program codes and data. The memory 376 may be referred to as acomputer-readable medium. In the UL, the controller/processor 375provides demultiplexing between transport and logical channels, packetreassembly, deciphering, header decompression, control signal processingto recover IP packets from the device 350. IP packets from thecontroller/processor 375 may be provided to the EPC 160. Thecontroller/processor 375 is also responsible for error detection usingan ACK and/or NACK protocol to support HARQ operations.

At least one of the TX processor 368, the RX processor 356, and thecontroller/processor 359 may be configured to perform aspects inconnection with 198 of FIG. 1 .

At least one of the TX processor 316, the RX processor 370, and thecontroller/processor 375 may be configured to perform aspects inconnection with 199 of FIG. 1 .

FIG. 4 is a diagram illustrating an TAB network 400. The TAB network 400may include an anchor node (that may be referred to herein as an “TABdonor”) 410 and access nodes (that may be referred to herein as “TABnodes”) 420. The TAB donor 410 may be a base station, such as a gNB oreNB, and may perform functions to control the TAB network 400. The TABnodes 420 may comprise L2 relay nodes, etc. Together, the TAB donor 410and the TAB nodes 420 share resources to provide an access network and abackhaul network to core network 490. For example, resources may beshared between access links and backhaul links in the TAB network.

UEs 430 interface with the TAB nodes 420 or the TAB donor 410 throughaccess links 470. The TAB nodes 420 communicate with each other and withthe TAB donor 410 through backhaul links 460. The TAB donor 410 isconnected to the core network 490 via a wireline backhaul link 450. UEs430 communicate with the core network by relaying messages through theirrespective access link 470 to the TAB network 400, which then may relaythe message through backhaul links 460 to the TAB donor 410 tocommunicate to the core network through the wireline backhaul link 450.Similarly, the core network may communicate with a UE 430 by sending amessage to the TAB donor 410 through the wireline backhaul link 450. TheTAB donor 410 sends the message through the TAB network 400 via backhaullinks 460 to the TAB node 420 connected to the UE 430, and the IAB node420 sends the message to the UE 430 via the access link 470.

Each IAB node, e.g., including IAB donor 410 and each IAB node 420, mayuse a PCI value. The PCI value may serve as an identifier for that IABdonor 410 or IAB node 420. The PCI value may be used to determine ascrambling sequence that is applied to physical signals and/or channelsthat are transmitted by a particular IAB node. For example, a PSS and/orthe SSS transmitted by the respective IAB donor 410 or IAB node 420 maybe scrambled using a scrambling sequence that is based on the PCI usedby the respective IAB node. A network may have a limited number ofavailable PCI values. For example, 5G NR systems may support 1008 PCIvalues. Accordingly, a given PCI value may be reused in the samenetwork.

FIG. 5 is a diagram illustrating an IAB network 500 and componentsthereof. The IAB network 500 includes an IAB donor 510 and IAB nodes 520a, 520 b. The IAB nodes, as well as the IAB donor, may provide wirelessaccess links to UEs 530 a-c.

The IAB donor 510 may be considered a root node of the tree structure ofthe IAB network 500. The IAB donor node 510 may be connected to the corenetwork 590 via a wired connection 591. The wired connection maycomprise, e.g., a wireline fiber. The IAB donor node 510 may provide aconnection to one or more IAB nodes 520 a. The IAB nodes 520 a may eachbe referred to as a child node of the IAB donor node 510. The IAB donornode 510 may also provide a connection to one or more UE 530 a, whichmay be referred to as a child UE of IAB donor 510. The IAB donor 510 maybe connected to its child IAB nodes 520 a via backhaul links 560, andmay be connected to the child UEs 530 a via access links 570. The IABnodes 520 a that are children nodes of IAB node 510 may also have IABnode(s) 520 b and/or UE(s) 530 b as children. For example, IAB nodes 520b may further connect to child nodes and/or child UEs. FIG. 5illustrates IAB nodes 520 b providing an access link to UEs 530 c,respectively.

The IAB donor 510 may include a central unit (CU) and a distributed unit(DU). The central unit CU may provide control for the IAB nodes 520 a,520 b in the IAB network 500. For example, the CU may be responsible forconfiguration of the IAB network 500. The CU may perform RRC/PDCP layerfunctions. The DU may perform scheduling. For example, the DU mayschedule resources for communication by the child IAB nodes 520 a and/orUEs 530 a of the IAB donor 510.

The IAB nodes 520 a, 520 b may include a mobile termination (MT) and aDU. The MT of IAB node 520 a may operate as a scheduled node, scheduledsimilar to a UE 530 a by the DU of the parent node, e.g., IAB donor 510.The MT of IAB node 520 b may operate as a scheduled node of parent node520 a. The DU may schedule the child IAB nodes 520 b and UEs 530 b ofthe IAB node 520 a. As an IAB node may provide a connection to an IABnode that in turn provides a connection for another IAB node. Thepattern of a parent IAB node comprising a DU that schedules a child IABnode/child UE may continue to more connections that illustrated in FIG.5 .

In wireless communication systems that support full duplex (FD)communication, self-interference may be an issue that may affect FDcommunications. Self-interference may occur if a transmitted signal froma transmitting device is leaked to (e.g., received by) the transmittingdevice's own receive port. The transmitting device may causeinterference to its own reception if transmission and reception overlapat least partially in time. In addition, the transmitted signal may bereflected by an object back to the receive port, which may be known asclutter echo. As used herein, a “clutter echo” refers to a signaltransmitted by a device that is reflected by an object (referred toherein as a “clutter”) and received by the device's own receiver.Reducing self-interference, especially clutter echo, via spatialisolation by properly choosing transmit and receive beams or moreadvanced transmit/receive beamforming may assist in supporting FDcommunication. FD communication allows for simultaneous UL and DLtransmission in FR2 and different associated aspects of procedures.Flexible TDD capability may be present at either a base station (e.g.,gNB) or UE or both. For example, a UE in FD communication may transmitUL from one antenna panel and receive DL in another antenna panel. FDcommunication may be conditional on UL/DL beam separation. FDcommunication may result in a reduction of latency, such that it may bepossible to receive a DL signal in UL only slots. At least anotherbenefit is that FD communications may provide for a spectrum efficiencyenhancement (e.g., per cell or per UE), which may allow for an increasein efficient resource utilization.

Self-interference measurements may be performed to determine whether FDcapability may be supported or not, or may be enabled/enhanced at awireless device. To perform self-interference measurements, the wirelessdevice may send a signal from a first set of antennas on one or moretransmit beam directions, and may measure the received signal (e.g.,reflected back or leaked transmission signal) on a second set ofantennas on one or more receive beam directions.

In some instances, a wireless device may receive a configuration toperform self-interference measurements from a network entity. Thenetwork entity may provide configurations/resources for the wirelessdevice to perform the self-interference measurement. The network entitymay configure the wireless device to provide reports of theself-interference measurements. The network entity, based on thereceived report of self-interference, may determine the wirelessdevice's FD capability, conditions, and/or performance. However, thenetwork entity may not account for clutter echo in configuring thewireless device to perform self-interference measurements.

In some instances, the wireless device may be configured to performself-interference measurements without specific instructions from anetwork entity. For example, a network entity (e.g., a distributed unit(DU)) may send a downlink signal (e.g., SSB/CSI-RS), the wireless devicemay measure what is received, in terms of reference signal receivedpower (RSRP), on its receive port/antennas. In another example, if a UEor a mobile termination (MT) is scheduled to send an uplink signal(e.g., SRS), the UE or MT may perform a self-interference measurement onits receive port/antennas. In some instances, the wireless device maynot provide any reporting of the self-interference measurements toanother entity (e.g., network). The wireless device may use theself-interference measurement to determine whether it may support FD orfor beam tuning. However, the wireless device may not account forclutter echo while performing the self-interference measurement.

FIGS. 6A-6C are diagrams illustrating examples 600, 610, 620 of fullduplex (FD) communication. The example 600 of FIG. 6A includes a UE1 602and two base station (e.g., TRPs) 604-1, 604-2, wherein the UE1 602 issending uplink transmissions to base station 604-1 and is receivingdownlink transmissions from base station 604-2, e.g., in a simultaneousmanner that overlaps in time. In some aspects, 604-1 and 604-2 or 604may represent IAB nodes. In the example 600 of FIG. 6A, FD is enabledfor the UE1 602, but not for the base stations 604-1, 604-2. The example610 of FIG. 6B includes two UEs, UE1 602-1 and UE2 602-2 and a basestation 604, wherein the UE1 602-1 is receiving a downlink transmissionfrom the base station 604 and the UE2 602-2 is transmitting an uplinktransmission to the base station 604. In the example 610 of FIG. 6B, FDis enabled for the base station 604, but not for the UEs UE1 602-1 andUE2 602-2. The example 620 of FIG. 6C includes a UE1 602 and a basestation 604, wherein the UE1 602 is receiving a downlink transmissionfrom the base station 604 and the UE1 602 is transmitting an uplinktransmission to the base station 604. In the example 620 of FIG. 6C, FDis enabled for both the UE1 602 and the base station 604.

Beam separation of the transmit and receive beams assist in limiting orreducing self-interference that may occur during FD communication. It isdesirable to account for clutter echo when configuring self-interferencemeasurements to minimize self-interference. Determining whether clutterecho is present may allow for the self-interference measurementconfiguration to be adjusted, which may provide a reliable FDcommunication by selecting beam pairs that minimize or reduceself-interference.

Aspects presented herein improve self-interference measurement throughthe device performing the measurement providing capability informationto a device that configures the measurements. For example, a UE mayprovide UE capability information to a base station, an IAB node, oranother UE. The device receiving the UE capability information may usethe information to determine a SIM configuration for the UE. Byproviding the UE capability information, the UE may improve some aspectsof the SIM configuration by the base station. Some aspects of the SIMconfiguration may be based on information that is known or experiencedby the UE rather than the base station, for example.

FIG. 7 is a call flow diagram 700 between a first wireless device 702and a second wireless device 704. In some aspects, the first wirelessdevice 702 may be a UE and the second wireless device 704 may be a basestation, where the base station provides a cell serving the UE. In someaspects, the first wireless device 702 may be a UE and the secondwireless device 704 may be an IAB node. In some aspects, the firstwireless device may be an IAB node (e.g., a child node) and the secondwireless device may be a parent IAB node, a central unit, a donor node,or a base station. For example, in the context of FIG. 1 , the secondwireless device 704 may correspond to the base station 102/180 or an IABnode 103. Further, the first wireless device 702 may correspond to a UE104 or an IAB node 103. In another example, in the context of FIG. 3 ,the second wireless device 704 may correspond to the device 310, and thefirst wireless device 702 may correspond to the device 350.

As illustrated at 708, the first wireless device 702 may transmit theassistance information for SIM configuration for the first wirelessdevice and including resource information for a SIM procedure associatedwith the first wireless device to the second wireless device 704. Thesecond wireless device 704 may receive the assistance information forSIM configuration for the first wireless device and including theresource information of the first wireless device for the SIM procedurefrom the first wireless device 702. The assistance information may beutilized for the SIM configuration for the first wireless device. Insome aspects, the first wireless device may be a UE and the secondwireless device may be a base station. In some aspects, the firstwireless device may be an IAB node and the second wireless device may bea parent IAB node or a CU in an IAB network.

The assistance information may comprise resource information of thefirst wireless device for a SIM procedure. In some aspects, theassistance information for the SIM configuration may indicate a SIMpurpose. The assistance information may indicate that the SIM purpose isa search of all the available transmit or receive beams at the firstwireless device. In some aspects, the assistance information mayindicate that the SIM purpose is for a beam refinement that may indicatea subset of transmit or receive beams at the first wireless device. Insome aspects, the assistance information may indicate that the SIMpurpose is for a clutter echo measurement. In some aspects, theassistance information may indicate that the SIM purpose is for a nullforming measurement. In some aspects, the assistance information for theSIM configuration may indicate resource information of the firstwireless device requested to perform the SIM procedure. For example, toperform the SIM procedure, the wireless device may simultaneously (e.g.,at least partially overlapping in time) transmit and receive on a beampair in order to measure self-interference that the transmission on thetransmit beam causes to reception on the reception beam. The assistanceinformation for the SIM configuration may indicate an amount ofresources requested for the SIM procedure or for each transmissionand/or reception beam sweep for the SIM. In some aspects, the firstwireless device may indicate a number of resources, such as a number oftransmission and/or reception beams that are requested/needed for thebeams sweeping SIM. In some aspects, the first wireless device mayindicate whether or not the resources are requested for SIM withrepetition. The resource information may comprise one or more of anumber of transmission beams, a number of reception beams, a repetitionindication, an amount of antenna panels at the first wireless device, anamount of beam groups at the first wireless device, a number of beams inan antenna panel at the first wireless device, or a number of beams in abeam group at the first wireless device, or a combination thereof.

In some aspects, the assistance information for the SIM configurationmay indicate beam candidate information for the first wireless device702. The beam candidate information may include one or more of at leastone transmission and reception beam pair candidate, at least onetransmission beam candidate, or at least one reception beam candidate,or a combination thereof. The beam pair candidates may be indicated as apair or may be indicated separately as one or more transmission beamcandidates and/or one or more reception beam candidates. The beamcandidate information may indicate an amount of antenna panels or beamgroups at the first wireless device. In some aspects, beam candidateinformation may indicate a number of beams in each antenna panel or ineach beam group. A beam group may correspond to an antenna panel.

In some aspects, the assistance information for the SIM configurationindicates information that relates to a full duplex operation. Theinformation may indicate one or more of at least one beam that does notsupport a full duplex transmission mode, at least one beam that does notsupport a transmission direction for full duplex transmissions, at leastone beam that does not support a reception direction for the duplextransmissions, information about a transmission or a reception beam ofthe second wireless device, or at least one beam that is not suitablefor downlink or uplink transmissions in a full duplex mode based on anunreported channel state information reference signal (CSI-RS) from thesecond wireless device. By providing such beam information to the secondwireless device 704, the first wireless device helps to avoid beingconfigured to perform SIM using beams or beam groups that are unsuitablefor full duplex operation. In some aspects, the first wireless devicemay indicate one or more beam groups that cannot support thetransmission direction in full duplex transmissions. In some aspects,the first wireless device may indicate one or more beams that cannotsupport the reception direction in full duplex transmissions. In someaspects, the first wireless device may indicate one or more beam groupsthat cannot support the reception direction in full duplextransmissions. In some aspects, the first wireless device may indicateinformation related to reception and/or transmission beams of the secondwireless device 704. The information related to reception and/ortransmission beams of the second wireless device may includemeasurements performed by the first wireless device 702, such as beammanagement measurements that have not yet been reported. For example, aUE may provide downlink beam measurement information for a transmissionor reception beam of a base station. In some aspects, the first wirelessdevice 702 may indicate information about beams that are not suitable,or do not meet criteria, for downlink or uplink transmissions infull-duplex transmission mode. The information may be obtained based onmeasurement of CSI-RS from the second wireless device 704. For example,a UE may report beams that are not suitable for DL or uplinkcommunication based on downlink CSI-RS beam measurements that aremeasured but not yet reported. A CSI-RS beam report may be reported fora limited number of beams, such as up to four best downlink beams forbeam management. The indication in the assistance information 708 mayprovide the opposite information, e.g., beams that are not suitablebased on the CSI-RS measurement. If the channel is reciprocal andexperiences similar quality for both reception and transmission, a beamthat is not suitable for uplink will also not be suitable for downlink.

At 710, the second wireless device 704 may configure the SIMconfiguration for the first wireless device 702. The second wirelessdevice 704 may determine the SIM configuration for the first wirelessdevice 702 based on the assistance information received from the firstwireless device 702.

At 712, the second wireless device 704 may provide the SIM configurationto the first wireless device 702. The first wireless device 702 mayreceive the SIM configuration from the second wireless device 704.

At 714, the first wireless device 702 may perform the SIM based on theSIM configuration received from the second wireless device 704. In someaspects, to perform the SIM, the first wireless device 702 may transmitor receive on beam pairs. The beam pairs used to perform the SIM may beindicated in the SIM configuration. The first wireless device 702 mayperform the SIM by transmitting and receiving on beam pairs in order todetect the self-interference or clutter echo. The first wireless device702 may generate a report of the results of the SIM.

At 716, the first wireless device 702 may provide the report includingthe results of the SIM to the second wireless device 704. The secondwireless device 704 may receive the report including the results of theSIM from the first wireless device 702. In some aspects, the secondwireless device 704 may determine FD capabilities of the first wirelessdevice 702 based on the report. In some aspects, the first wirelessdevice may not provide a report of the results of the SIM to the secondwireless device or another entity (e.g., network). In such instances,the first wireless device may use the results of the SIM to determinewhether the first wireless device supports FD.

FIG. 8 is a flowchart 800 of a method of wireless communication. Themethod may be performed by an IAB node or a UE or a component of an IABnode or a UE (e.g., the IAB node 103, 410, 420, 510, 520 a, 520 b; thedevice 350, 702, 704, 802, 804; the apparatus 1002; the cellularbaseband processor 1004, which may include the memory 360 and which maybe the entire device 350 or a component of the device 350, such as theTX processor 368, the RX processor 356, and/or the controller/processor359). One or more of the illustrated operations may be optional,omitted, transposed, or contemporaneous. The method may enable a firstwireless device to provide, to a second wireless device, assistanceinformation for a SIM configuration.

At 804, the first wireless device may transmit the assistanceinformation for the SIM configuration for the first wireless device andincluding resource information for a SIM procedure associated with thefirst wireless device. For example, 804 may be performed by informationcomponent 1042 of apparatus 1002. The first wireless device may transmitthe assistance information for the SIM configuration for the firstwireless device and including resource information for the SIM procedureassociated with the first wireless device to a second wireless device.The assistance information may be utilized for the SIM configuration forthe first wireless device. In some aspects, the first wireless devicemay be a UE and the second wireless device may be a base station. Insome aspects, the first wireless device may be an IAB node and thesecond wireless device may be a parent IAB node or a CU in an IABnetwork.

The assistance information may comprise resource information of thefirst wireless device for a SIM procedure. In some aspects, theassistance information for the SIM configuration may indicate a SIMpurpose. The assistance information may indicate that the SIM purposemay be one or more of a search of all the available transmit or receivebeams at the first wireless device (which may be referred to as anexhaustive search), a beam refinement that may indicate a subset oftransmit or receive beams at the first wireless device, a clutter echomeasurement, or a null forming measurement, or a combination thereof. Insome aspects, the assistance information may further indicate resourceinformation for at least one of a transmission beam sweep, or areception beam sweep, or a combination thereof. The resource informationmay comprise one or more of a number of transmission beams, a number ofreception beams, a repetition indication, an amount of antenna panels atthe first wireless device, an amount of beam groups at the firstwireless device, a number of beams in an antenna panel at the firstwireless device, or a number of beams in a beam group at the firstwireless device, or a combination thereof. In some aspects, theassistance information for the SIM configuration may indicate beamcandidate information. The beam candidate information may include one ormore of at least one transmission and reception beam pair candidate, atleast one transmission beam candidate, or at least one reception beamcandidate, or a combination thereof. In some aspects, the assistanceinformation for the SIM configuration indicates information that relatesto a full duplex operation. The information may indicate one or more ofat least one beam that does not support a full duplex transmission mode,at least one beam that does not support a transmission direction forfull duplex transmissions, at least one beam that does not support areception direction for the duplex transmissions, information about atransmission or a reception beam of the second wireless device, or atleast one beam that is not suitable for downlink or uplink transmissionsin a full duplex mode based on an unreported channel state informationreference signal (CSI-RS) from the second wireless device. In someaspects, the SIM configuration may be based on the assistanceinformation provided to the second wireless device.

At 806, the first wireless device may receive the SIM configuration. Forexample, 806 may be performed by configuration component 1044 ofapparatus 1002. The first wireless device may receive the SIMconfiguration from the second wireless device. The first wireless devicemay be configured to perform a SIM based on the SIM configuration.

FIG. 9 is a flowchart 900 of a method of wireless communication. Themethod may be performed by an IAB node or a UE or a component of an IABnode or a UE (e.g., the IAB node 103, 410, 420, 510, 520 a, 520 b; thedevice 350, 702, 704, 802, 804; the apparatus 1002; the cellularbaseband processor 1004, which may include the memory 360 and which maybe the entire device 350 or a component of the device 350, such as theTX processor 368, the RX processor 356, and/or the controller/processor359). One or more of the illustrated operations may be optional,omitted, transposed, or contemporaneous. The method may enable a firstwireless device to provide, to a second wireless device, assistanceinformation for a SIM configuration.

At 904, the first wireless device may transmit the assistanceinformation for the SIM configuration for the first wireless device andincluding resource information for a SIM procedure associated with thefirst wireless device. For example, 904 may be performed by informationcomponent 1042 of apparatus 1002. The first wireless device may transmitthe assistance information for the SIM configuration for the firstwireless device and including resource information for the SIM procedureassociated with the first wireless device to a second wireless device.The assistance information may be utilized for the SIM configuration forthe first wireless device. In some aspects, the first wireless devicemay be a UE and the second wireless device may be a base station. Insome aspects, the first wireless device may be an IAB node and thesecond wireless device may be a parent IAB node or a CU in an IABnetwork.

The assistance information may comprise resource information of thefirst wireless device for a SIM procedure. In some aspects, theassistance information for the SIM configuration may indicate a SIMpurpose. The assistance information may indicate that the SIM purposemay be one or more of a search of all the available transmit or receivebeams at the first wireless device (which may be referred to as anexhaustive search), a beam refinement that may indicate a subset oftransmit or receive beams at the first wireless device, a clutter echomeasurement, or a null forming measurement, or a combination thereof. Insome aspects, the assistance information may further indicate resourceinformation for at least one of, a transmission beam sweep, or areception beam sweep, or a combination thereof. The resource informationmay comprise one or more of a number of transmission beams, a number ofreception beams, a repetition indication, an amount of antenna panels atthe first wireless device, an amount of beam groups at the firstwireless device, a number of beams in an antenna panel at the firstwireless device, or a number of beams in a beam group at the firstwireless device, or a combination thereof. In some aspects, theassistance information for the SIM configuration may indicate beamcandidate information. The beam candidate information may include one ormore of at least one transmission and reception beam pair candidate, atleast one transmission beam candidate, or at least one reception beamcandidate, or a combination thereof. In some aspects, the assistanceinformation for the SIM configuration indicates information that relatesto a full duplex operation. The information may indicate one or more ofat least one beam that does not support a full duplex transmission mode,at least one beam that does not support a transmission direction forfull duplex transmissions, at least one beam that does not support areception direction for the duplex transmissions, information about atransmission or a reception beam of the second wireless device, or atleast one beam that is not suitable for downlink or uplink transmissionsin a full duplex mode based on an unreported channel state informationreference signal (CSI-RS) from the second wireless device. In someaspects, the SIM configuration may be based on the assistanceinformation provided to the second wireless device.

At 906, the first wireless device may receive the SIM configuration. Forexample, 906 may be performed by configuration component 1044 ofapparatus 1002. The first wireless device may receive the SIMconfiguration from the second wireless device. The first wireless devicemay be configured to perform a SIM based on the SIM configuration.

At 908, the first wireless device may perform the SIM based on the SIMconfiguration. For example, 908 may be performed by SIM component 1046of apparatus 1002. The first wireless device may perform the SIM basedon the SIM configuration received from the second wireless device. Insome aspects, the first wireless device may report the results of theSIM. The first wireless device may report the results of the SIM to thesecond wireless device. The second wireless device may determine the FDcapabilities of the first wireless device based on the report. In someinstances, the first wireless device may not provide a report of theresults of the SIM to the second wireless device or another entity(e.g., network). In such instances, the first wireless device may usethe results of the SIM to determine whether the first wireless devicesupports FD.

FIG. 10 is a diagram 1000 illustrating an example of a hardwareimplementation for an apparatus 1002. The apparatus 1002 may be a UE, acomponent of a UE, or may implement UE functionality. In some aspects,the apparatus1002 may include a cellular baseband processor 1004 (alsoreferred to as a modem) coupled to a cellular RF transceiver 1022. Insome aspects, the apparatus 1002 may further include one or moresubscriber identity modules (SIM) cards 1020, an application processor1006 coupled to a secure digital (SD) card 1008 and a screen 1010, aBluetooth module 1012, a wireless local area network (WLAN) module 1014,a Global Positioning System (GPS) module 1016, or a power supply 1018.The cellular baseband processor 1004 communicates through the cellularRF transceiver 1022 with the UE 104 and/or BS 102/180. The cellularbaseband processor 1004 may include a computer-readable medium/memory.The computer-readable medium/memory may be non-transitory. The cellularbaseband processor 1004 is responsible for general processing, includingthe execution of software stored on the computer-readable medium/memory.The software, when executed by the cellular baseband processor 1004,causes the cellular baseband processor 1004 to perform the variousfunctions described supra. The computer-readable medium/memory may alsobe used for storing data that is manipulated by the cellular basebandprocessor 1004 when executing software. The cellular baseband processor1004 further includes a reception component 1030, a communicationmanager 1032, and a transmission component 1034. The communicationmanager 1032 includes the one or more illustrated components. Thecomponents within the communication manager 1032 may be stored in thecomputer-readable medium/memory and/or configured as hardware within thecellular baseband processor 1004. The cellular baseband processor 1004may be a component of the device 350 and may include the memory 360and/or at least one of the TX processor 368, the RX processor 356, andthe controller/processor 359. In one configuration, the apparatus 1002may be a modem chip and include just the baseband processor 1004, and inanother configuration, the apparatus 1002 may be the entire UE (e.g.,see 350 of FIG. 3 ) and include the additional modules of the apparatus1002.

The communication manager 1032 includes an information component 1042that is configured to transmit the assistance information, e.g., asdescribed in connection with 804 of FIG. 8 or 904 of FIG. 9 . Thecommunication manager 1032 further includes a configuration component1044 that is configured to receive the SIM configuration, e.g., asdescribed in connection with 806 of FIG. 8 or 906 of FIG. 9 . Thecommunication manager 1032 further includes a SIM component 1046 that isconfigured to perform a SIM based on the SIM configuration, e.g., asdescribed in connection with 908 of FIG. 9 .

The apparatus may include additional components that perform each of theblocks of the algorithm in the flowcharts of FIG. 8 or 9 . As such, eachblock in the flowcharts of FIG. 8 or 9 may be performed by a componentand the apparatus may include one or more of those components. Thecomponents may be one or more hardware components specificallyconfigured to carry out the stated processes/algorithm, implemented by aprocessor configured to perform the stated processes/algorithm, storedwithin a computer-readable medium for implementation by a processor, orsome combination thereof.

As shown, the apparatus 1002 may include a variety of componentsconfigured for various functions. In one configuration, the apparatus1002, and in particular the cellular baseband processor 1004, includesmeans for transmitting, to a second wireless device, assistanceinformation for a SIM configuration for the first wireless device andincluding resource information for a SIM procedure associated with thefirst wireless device. The apparatus includes means for receiving, fromthe second wireless device, the SIM configuration. The apparatus furtherincludes means for performing SIM based on the SIM configurationreceived from the second wireless device. The means may be one or moreof the components of the apparatus 1002 configured to perform thefunctions recited by the means. As described supra, the apparatus 1002may include the TX Processor 368, the RX Processor 356, and thecontroller/processor 359. As such, in one configuration, the means maybe the TX Processor 368, the RX Processor 356, and thecontroller/processor 359 configured to perform the functions recited bythe means.

FIG. 11 is a flowchart 1100 of a method of wireless communication. Themethod may be performed by an IAB node or a base station or a componentof an IAB node or a base station (e.g., the IAB node 103, 410, 420, 510,520 a, 520 b; the base station 102, 180, 604, 604-1, 604-2; the device310, 704, 804; the apparatus 1202; the baseband unit 1204, which mayinclude the memory 376 and which may be the entire device 310 or acomponent of the device 310, such as the TX processor 316, the RXprocessor 370, and/or the controller/processor 375). One or more of theillustrated operations may be optional, omitted, transposed, orcontemporaneous. The method may enable a first wireless device toconfigure a SIM configuration for a second wireless device in view ofassistance information received from the second wireless device.

At 1102, the first wireless device may receive assistance informationfor a SIM configuration. For example, 1102 may be performed byinformation component 1240 of apparatus 1202. The first wireless devicemay receive the assistance information for the SIM configuration from asecond wireless device. The assistance information may comprise resourceinformation for a SIM procedure associated with the second wirelessdevice. In some aspects, the first wireless device may be a base stationand the second wireless device may be UE. In some aspects, the secondwireless device may be an IAB node and the first wireless device may bea parent IAB node or a CU in an IAB network.

At 1104, the first wireless device may configure the SIM configurationfor the second wireless device. For example, 1104 may be performed byconfiguration component 1242 of apparatus 1202. The first wirelessdevice may configure the SIM configuration based on the assistanceinformation received from the second wireless device. In some aspects,the assistance information for the SIM configuration may indicate a SIMpurpose. The assistance information may indicate that the SIM purposemay be one or more of a search of all the available transmit or receivebeams at the first wireless device (which may be referred to as anexhaustive search), a beam refinement that may indicate a subset oftransmit or receive beams at the first wireless device, a clutter echomeasurement, or a null forming measurement. In some aspects, theassistance information for the SIM configuration may indicate resourceinformation of the second wireless device for at least one of the SIMprocedure, a transmission beam sweep, or a reception beam sweep. Theresource information may comprise one or more of a number oftransmission beams, a number of reception beams, a repetitionindication, an amount of antenna panels at the second wireless device,an amount of beam groups at the second wireless device, a number ofbeams in an antenna panel at the second wireless device, or a number ofbeams in a beam group at the second wireless device. In some aspects,the assistance information for the SIM configuration may indicate beamcandidate information. The beam candidate information may include one ormore of at least one transmission and reception beam pair candidate, atleast one transmission beam candidate, or at least one reception beamcandidate. In some aspects, the assistance information for the SIMconfiguration may indicate information that relates to full duplexoperation. The information may indicate one or more of at least one beamthat does not support a full duplex transmission mode, at least one beamthat does not support a transmission direction for full duplextransmissions, at least one beam that does not support a receptiondirection for the duplex transmissions, information about a transmissionor a reception beam of the first wireless device, or at least one beamthat is not suitable for downlink or uplink transmissions in a fullduplex mode based on an unreported CSI-RS from the first wirelessdevice. In some aspects, the SIM configuration may be based on theassistance information received from the second wireless device. Thefirst wireless device may provide the SIM configuration to the secondwireless device.

FIG. 12 is a diagram 1200 illustrating an example of a hardwareimplementation for an apparatus 1202. The apparatus 1202 may be a basestation, a component of a base station, or may implement base stationfunctionality. In some aspects, the apparatus 1202 may include abaseband unit 1204. The baseband unit 1204 may communicate through acellular RF transceiver 1222 with the UE 104. The baseband unit 1204 mayinclude a computer-readable medium/memory. The baseband unit 1204 isresponsible for general processing, including the execution of softwarestored on the computer-readable medium/memory. The software, whenexecuted by the baseband unit 1204, causes the baseband unit 1204 toperform the various functions described supra. The computer-readablemedium/memory may also be used for storing data that is manipulated bythe baseband unit 1204 when executing software. The baseband unit 1204further includes a reception component 1230, a communication manager1232, and a transmission component 1234. The communication manager 1232includes the one or more illustrated components. The components withinthe communication manager 1232 may be stored in the computer-readablemedium/memory and/or configured as hardware within the baseband unit1204. The baseband unit 1204 may be a component of the device 310 andmay include the memory 376 and/or at least one of the TX processor 316,the RX processor 370, and the controller/processor 375.

The communication manager 1232 includes an information component 1240that may receive assistance information for a SIM configuration for asecond wireless device, e.g., as described in connection with 1102 ofFIG. 11 . The communication manager 1232 further includes aconfiguration component 1242 that may configure the second wirelessdevice with the SIM configuration, e.g., as described in connection with1104 of FIG. 11 .

The apparatus may include additional components that perform each of theblocks of the algorithm in the flowchart of FIG. 11 . As such, eachblock in the flowchart of FIG. 11 may be performed by a component andthe apparatus may include one or more of those components. Thecomponents may be one or more hardware components specificallyconfigured to carry out the stated processes/algorithm, implemented by aprocessor configured to perform the stated processes/algorithm, storedwithin a computer-readable medium for implementation by a processor, orsome combination thereof.

As shown, the apparatus 1202 may include a variety of componentsconfigured for various functions. In one configuration, the apparatus1202, and in particular the baseband unit 1204, includes means forreceiving, from a second wireless device, assistance information for aSIM configuration for the second wireless device. The assistanceinformation comprises resource information for a SIM procedureassociated with the second wireless device. The apparatus 1102 includesmeans for configuring the second wireless device with the SIMconfiguration. The means may be one or more of the components of theapparatus 1202 configured to perform the functions recited by the means.As described supra, the apparatus 1202 may include the TX Processor 316,the RX Processor 370, and the controller/processor 375. As such, in oneconfiguration, the means may be the TX Processor 316, the RX Processor370, and the controller/processor 375 configured to perform thefunctions recited by the means.

It is understood that the specific order or hierarchy of blocks in theprocesses/flowcharts disclosed is an illustration of example approaches.Based upon design preferences, it is understood that the specific orderor hierarchy of blocks in the processes/flowcharts may be rearranged.Further, some blocks may be combined or omitted. The accompanying methodclaims present elements of the various blocks in a sample order, and arenot meant to be limited to the specific order or hierarchy presented.

The previous description is provided to enable any person skilled in theart to practice the various aspects described herein. Variousmodifications to these aspects will be readily apparent to those skilledin the art, and the generic principles defined herein may be applied toother aspects. Thus, the claims are not intended to be limited to theaspects shown herein, but is to be accorded the full scope consistentwith the language claims, wherein reference to an element in thesingular is not intended to mean “one and only one” unless specificallyso stated, but rather “one or more.” Terms such as “if,” “when,” and“while” should be interpreted to mean “under the condition that” ratherthan imply an immediate temporal relationship or reaction. That is,these phrases, e.g., “when,” do not imply an immediate action inresponse to or during the occurrence of an action, but simply imply thatif a condition is met then an action will occur, but without requiring aspecific or immediate time constraint for the action to occur. The word“exemplary” is used herein to mean “serving as an example, instance, orillustration.” Any aspect described herein as “exemplary” is notnecessarily to be construed as preferred or advantageous over otheraspects. Unless specifically stated otherwise, the term “some” refers toone or more. Combinations such as “at least one of A, B, or C,” “one ormore of A, B, or C,” “at least one of A, B, and C,” “one or more of A,B, and C,” and “A, B, C, or any combination thereof” include anycombination of A, B, and/or C, and may include multiples of A, multiplesof B, or multiples of C. Specifically, combinations such as “at leastone of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B,and C,” “one or more of A, B, and C,” and “A, B, C, or any combinationthereof” may be A only, B only, C only, A and B, A and C, B and C, or Aand B and C, where any such combinations may contain one or more memberor members of A, B, or C. All structural and functional equivalents tothe elements of the various aspects described throughout this disclosurethat are known or later come to be known to those of ordinary skill inthe art are expressly incorporated herein by reference and are intendedto be encompassed by the claims. Moreover, nothing disclosed herein isintended to be dedicated to the public regardless of whether suchdisclosure is explicitly recited in the claims. The words “module,”“mechanism,” “element,” “device,” and the like may not be a substitutefor the word “means.” As such, no claim element is to be construed as ameans plus function unless the element is expressly recited using thephrase “means for.”

The following aspects are illustrative only and may be combined withother aspects or teachings described herein, without limitation.

Aspect 1 is an apparatus for wireless communication at a first wirelessdevice including a memory and at least one processor coupled to thememory and configured to transmit, to a second wireless device,assistance information for a SIM configuration for the first wirelessdevice and including resource information for a SIM procedure associatedwith the first wireless device; and receive, from the second wirelessdevice, the SIM configuration.

Aspect 2 is the apparatus of Aspect 1, further includes a transceivercoupled to the at least one processor.

Aspect 3 is the apparatus of Aspects 1 and 2, further includes that theat least one processor is further configured to perform a SIM based onthe SIM configuration received from the second wireless device.

Aspect 4 is the apparatus of Aspects 1-3, further includes that thefirst wireless device is a UE and the second wireless device is a basestation.

Aspect 5 is the apparatus of Aspects 1-4, further includes that thefirst wireless device is an IAB node and the second wireless device is aparent IAB node or a central unit in an IAB network.

Aspect 6 is the apparatus of Aspects 1-5, further includes that theassistance information for the SIM configuration indicates a SIMpurpose.

Aspect 7 is the apparatus of Aspects 1-6, further includes that theassistance information indicates that the SIM purpose is one or more ofan exhaustive search of all beams, a beam refinement, a clutter echomeasurement, or a null forming measurement.

Aspect 8 is the apparatus of Aspects 1-7, further includes that theassistance information further indicates the resource information for atleast one of a transmission beam sweep, or a reception beam sweep.

Aspect 9 is the apparatus of Aspects 1-8, further includes that theresource information comprises one or more of a number of transmissionbeams, a number of reception beams, a repetition indication, an amountof antenna panels at the first wireless device, an amount of beam groupsat the first wireless device, a number of beams in an antenna panel atthe first wireless device, or a number of beams in a beam group at thefirst wireless device.

Aspect 10 is the apparatus of Aspects 1-9, further includes that theassistance information for the SIM configuration indicates beamcandidate information.

Aspect 11 is the apparatus of Aspects 1-10, further includes thatwherein the beam candidate information includes one or more of at leastone transmission and reception beam pair candidate, at least onetransmission beam candidate, or at least one reception beam candidate.

Aspect 12 is the apparatus of Aspects 1-11, further includes that theassistance information for the SIM configuration indicates informationthat relates to full duplex operation.

Aspect 13 is the apparatus of Aspects 1-12, further includes that theinformation indicates one or more of at least one beam that does notsupport a full duplex transmission mode, at least one beam that does notsupport a transmission direction for full duplex transmissions, at leastone beam that does not support a reception direction for the full duplextransmissions, information about a transmission or a reception beam ofthe second wireless device, or at least one beam that is not suitablefor downlink or uplink transmissions in a full duplex mode based on anunreported CSI-RS from the second wireless device.

Aspect 14 is the apparatus of Aspects 1-13, further includes that theSIM configuration is based on the assistance information provided to thesecond wireless device.

Aspect 15 is a method of wireless communication for implementing any ofAspects 1-14.

Aspect 16 is an apparatus for wireless communication including means forimplementing any of Aspects 1-14.

Aspect 17 is a computer-readable medium storing computer executablecode, where the code when executed by a processor causes the processorto implement any of Aspects 1-14.

Aspect 18 is an apparatus for wireless communication at a first wirelessdevice including a memory and at least one processor coupled to thememory and configured to receive, from a second wireless device,assistance information for a self-interference measurement (SIM)configuration for the second wireless device, wherein the assistanceinformation comprises resource information for a SIM procedureassociated with the second wireless device; and configure the secondwireless device with the SIM configuration.

Aspect 19 is the apparatus of Aspect 18, further includes a transceivercoupled to the at least one processor.

Aspect 20 is the apparatus of Aspects 18 and 19, further includes thatthe first wireless device is a base station and the second wirelessdevice is a user UE.

Aspect 21 is the apparatus of Aspects 18-20, further includes that thesecond wireless device is an IAB node and the first wireless device is aparent IAB node or a central unit in an IAB network.

Aspect 22 is the apparatus of Aspects 18-21, further includes that theassistance information for the SIM configuration indicates a SIMpurpose.

Aspect 23 is the apparatus of Aspects 18-22, further includes that theassistance information indicates that the SIM purpose is one or more ofan exhaustive search, a beam refinement, a clutter echo measurement, ora null forming measurement.

Aspect 24 is the apparatus of Aspects 18-23, further includes that theassistance information further indicates the resource information for atleast one of a transmission beam sweep, or a reception beam sweep.

Aspect 25 is the apparatus of Aspects 18-24, further includes that theresource information comprises one or more of a number of transmissionbeams, a number of reception beams, a repetition indication, an amountof antenna panels at the second wireless device, an amount of beamgroups at the second wireless device, a number of beams in an antennapanel at the second wireless device, or a number of beams in a beamgroup at the second wireless device.

Aspect 26 is the apparatus of Aspects 18-25, further includes that theassistance information for the SIM configuration indicates beamcandidate information.

Aspect 27 is the apparatus of Aspects 18-26, further includes that thebeam candidate information includes one or more of at least onetransmission and reception beam pair candidate, at least onetransmission beam candidate, or at least one reception beam candidate.

Aspect 28 is the apparatus of Aspects 18-27, further includes that theassistance information for the SIM configuration indicates informationthat relates to full duplex operation.

Aspect 29 is the apparatus of Aspects 18-28, further includes that theinformation indicates one or more of at least one beam that does notsupport a full duplex transmission mode, at least one beam that does notsupport a transmission direction for full duplex transmissions, at leastone beam that does not support a reception direction for the full duplextransmissions, information about a transmission or a reception beam ofthe second wireless device, or at least one beam that is not suitablefor downlink or uplink transmissions in a full duplex mode based on anunreported CSI-RS from the first wireless device.

Aspect 30 is the apparatus of Aspects 18-29, further includes that theSIM configuration is based on the assistance information received fromthe second wireless device.

Aspect 31 is a method of wireless communication for implementing any ofAspects 18-30.

Aspect 32 is an apparatus for wireless communication including means forimplementing any of Aspects 18-30.

Aspect 33 is a computer-readable medium storing computer executablecode, where the code when executed by a processor causes the processorto implement any of Aspects 18-30.

What is claimed is:
 1. An apparatus for wireless communication at afirst wireless device, comprising: a memory; and at least one processorcoupled to the memory and configured to: transmit, to a second wirelessdevice, assistance information for determining a self-interferencemeasurement (SIM) configuration, at the second wireless device, for thefirst wireless device, the assistance information comprisingself-interference measured by the first wireless device, the assistanceinformation further comprising resource information for a SIM procedureassociated with the first wireless device; and receive, from the secondwireless device, the SIM configuration for the first wireless device. 2.The apparatus of claim 1, further comprising a transceiver coupled tothe at least one processor.
 3. The apparatus of claim 1, wherein the atleast one processor is further configured to: perform a SIM based on theSIM configuration received from the second wireless device.
 4. Theapparatus of claim 1, wherein the first wireless device is a userequipment (UE) and the second wireless device is a base station.
 5. Theapparatus of claim 1, wherein the first wireless device is an integratedaccess and backhaul (IAB) node and the second wireless device is aparent IAB node or a central unit in an IAB network.
 6. The apparatus ofclaim 1, wherein the assistance information for the SIM configurationindicates a SIM purpose.
 7. The apparatus of claim 6, wherein theassistance information indicates that the SIM purpose is one or more of:an exhaustive search of all beams, a beam refinement, a clutter echomeasurement, or a null forming measurement.
 8. The apparatus of claim 1,wherein the assistance information further indicates the resourceinformation for at least one of a transmission beam sweep, or areception beam sweep.
 9. The apparatus of claim 8, wherein the resourceinformation comprises one or more of: a number of transmission beams, anumber of reception beams, a repetition indication, an amount of antennapanels at the first wireless device, an amount of beam groups at thefirst wireless device, a number of beams in an antenna panel at thefirst wireless device, or a number of beams in a beam group at the firstwireless device.
 10. The apparatus of claim 1, wherein the assistanceinformation for the SIM configuration indicates beam candidateinformation.
 11. The apparatus of claim 10, wherein the beam candidateinformation includes one or more of: at least one transmission andreception beam pair candidate, at least one transmission beam candidate,or at least one reception beam candidate.
 12. The apparatus of claim 1,wherein the assistance information for the SIM configuration indicatesinformation that relates to full duplex operation.
 13. The apparatus ofclaim 12, wherein the information indicates one or more of: at least onebeam that does not support a full duplex transmission mode, at least onebeam that does not support a transmission direction for full duplextransmissions, at least one beam that does not support a receptiondirection for the full duplex transmissions, information about atransmission or a reception beam of the second wireless device, or atleast one beam that is not suitable for downlink or uplink transmissionsin a full duplex mode based on an unreported channel state informationreference signal (CSI-RS) from the second wireless device.
 14. Theapparatus of claim 1, wherein the SIM configuration is based on theassistance information provided to the second wireless device.
 15. Amethod of wireless communication at a first wireless device, comprising:transmitting, to a second wireless device, assistance information fordetermining a self-interference measurement (SIM) configuration, at thesecond wireless device, for the first wireless device, wherein theassistance information comprises self-interference measured by the firstwireless device, the assistance information further including resourceinformation for a SIM procedure associated with the first wirelessdevice; and receiving, from the second wireless device, the SIMconfiguration for the first wireless device.
 16. The method of claim 15,further comprising: performing a SIM based on the SIM configurationreceived from the second wireless device.
 17. An apparatus for wirelesscommunication at a first wireless device, comprising: a memory; and atleast one processor coupled to the memory and configured to: receive,from a second wireless device, assistance information for determining aself-interference measurement (SIM) configuration, at the first wirelessdevice, for the second wireless device, wherein the assistanceinformation comprises self-interference measured by the second wirelessdevice, the assistance information further includes resource informationfor a SIM procedure associated with the second wireless device; andconfigure the second wireless device with the SIM configuration.
 18. Theapparatus of claim 17, further comprising a transceiver coupled to theat least one processor.
 19. The apparatus of claim 18, wherein the SIMconfiguration is based on the assistance information received from thesecond wireless device.
 20. The apparatus of claim 17, wherein the firstwireless device is a base station and the second wireless device is auser equipment (UE).
 21. The apparatus of claim 17, wherein the secondwireless device is an integrated access and backhaul (IAB) node and thefirst wireless device is a parent IAB node or a central unit in an IABnetwork.
 22. The apparatus of claim 17, wherein the assistanceinformation for the SIM configuration indicates a SIM purpose.
 23. Theapparatus of claim 22, wherein the assistance information indicates thatthe SIM purpose is one or more of: an exhaustive search, a beamrefinement, a clutter echo measurement, or a null forming measurement.24. The apparatus of claim 17, wherein the assistance informationfurther indicates the resource information for at least one of atransmission beam sweep, or a reception beam sweep.
 25. The apparatus ofclaim 24, wherein the resource information comprises one or more of: anumber of transmission beams, a number of reception beams, a repetitionindication, an amount of antenna panels at the second wireless device,an amount of beam groups at the second wireless device, a number ofbeams in an antenna panel at the second wireless device, or a number ofbeams in a beam group at the second wireless device.
 26. The apparatusof claim 17, wherein the assistance information for the SIMconfiguration indicates beam candidate information.
 27. The apparatus ofclaim 26, wherein the beam candidate information includes one or moreof: at least one transmission and reception beam pair candidate, atleast one transmission beam candidate, or at least one reception beamcandidate.
 28. The apparatus of claim 17, wherein the assistanceinformation for the SIM configuration indicates information that relatesto full duplex operation.
 29. The apparatus of claim 28, wherein theinformation indicates one or more of: at least one beam that does notsupport a full duplex transmission mode, at least one beam that does notsupport a transmission direction for full duplex transmissions, at leastone beam that does not support a reception direction for the full duplextransmissions, information about a transmission or a reception beam ofthe second wireless device, or at least one beam that is not suitablefor downlink or uplink transmissions in a full duplex mode based on anunreported channel state information reference signal (CSI-RS) from thefirst wireless device.
 30. A method of wireless communication at a firstwireless device, comprising: receiving, from a second wireless device,assistance information for determining a self-interference measurement(SIM) configuration, at the first wireless device, for the secondwireless device, wherein the assistance information comprisesself-interference measured by the second wireless device, the assistanceinformation further includes resource information for a SIM procedureassociated with the second wireless device; and configuring the secondwireless device with the SIM configuration.